He is _____ unusual writer. He can write _____ useful book.
| A．a; the | B．an; an |
| C．the; an | D．an; a |
---- I have very good grade in English this time .
---- _______________!
| A．Congratulations | B．Best wishes |
| C．Good luck | D．Come on |
I didn’t understand my parents why they are so strict ______ me ______ my schoolwork.
| A．with ; of | B．with ; in |
| C．of ; with | D．in ; with |
Both red and black represent _____ . But I prefer to wear red when I feel tired .
| A．powerful | B．power | C．peace | D．peaceful |
He devoted all his time he had _____ others.
| A．to help | B．helping |
| C．to helping | D．helped |